chess problem

Chess problems are created chess positions where one player, usually White, must achieve a specific task, such as checkmating the opponent in a set number of moves. These compositions are judged on originality, difficulty, beauty, and the absence of unnecessary pieces. Unlike standard chess games, problem-solving focuses on specific, often surprising, tactical sequences rather than general strategy.12

There are different types of chess compositions:
* Studies: White aims for a win or draw in an unspecified number of moves.1
* Problems: White must force checkmate within a defined number of moves.1
* Heterodox problems: These involve unusual stipulations or nonstandard rules and pieces, such as "fairy chess". Examples include helpmates (Black cooperates for checkmate) and selfmates (White forces Black to deliver mate).2